Let Y1, Y2, ...., Ya be independent, exponentially distributed random variables with mean beta.

Give the 1) density function for Y(k), the kth order statistic, where k is an integer between 1 and n.

2) joint density function for Y(j) and Y(k) where j and k are integers 1<=j<k<=n.

*j and k are suppose to be subscripted

Give the 1) density function for Y(k), the kth order statistic, where k is an integer between 1 and n.

2) joint density function for Y(j) and Y(k) where j and k are integers 1<=j<k<=n.

*j and k are suppose to be subscripted

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